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Home >> Jeep >> 2002 >> Grand Cherokee 2WD Laredo V8-4.7L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Component Tests and General Diagnostics >> Checking the PCM Power and Ground Circuits

Checking the PCM Power and Ground Circuits

Tests 1 - 3:




SYMPTOM
CHECKING THE PCM POWER AND GROUNDS

POSSIBLE CAUSES
- PCM fused B+ circuit
- PCM fused ignition switch output circuit
- PCM ground circuits
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